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I have an Ubuntu system with four 4GB sticks that shows up as 8GB, no matter what combination of RAM slots or modules I try (A1-B1: 4GB, A2-B2: 4GB, A1-A2: 4GB, B1-B2: 4GB, A1,A2,B1: 4GB, A1-B1+A2-B2: 4GB)

bios up to date, os up to date? is the mobo compatible with that much ram/that type of ranking of ram? (dual/single rank) there was an interesting article about a guy trying to install 8GB DIMMs on a board for Windows i read recently... i think he had to tweak GRUB to get it working

did you reseat/transplant the CPU recently? i've heard of people losing some memory channels with an improperly seated LGA CPU (including Threadripper ...tho a mod on the AMD Discord has installed/reinstalled multiple TRs without an issue like that)

did you reseat/transplant the CPU recently? i've heard of people losing some memory channels with an improperly seated LGA CPU (including Threadripper ...tho a mod on the AMD Discord has installed/reinstalled multiple TRs without an issue like that)

I've placed a Cooler Master 212 EVO on it, replacing the stock cooler. I've since reseated that cooler (to no avail), as I may have tightened it too much.
Note that all RAM slots function, and all RAM sticks too. It is just that they don't add up. The SPD tool in the BIOS of the ASUS P8Z68-V sees four 4GB sticks, but the BIOS reports only 8GB.

Our 3rd result at NFS is at the moment 319,786 which, with some effort, can be upgraded to 347,908 -at max. This could hypothetically advance us one position at the cost of the Boinc@Mixies, but they only need to improve their 340,854 a tiny bit in order to stay ahead of us. Behind us there's BOINC.Italy, but they can't go higher than 314,072 so we're safe from them. We are not safe from the Cooler Master-sponsored Meisterkühler though, nor from the Linus Tech Tips Team -if those popy-jopy Linus videos aren't bad enough- so I expect us to drop two places actually here.